<template>
  <div>
    <!--    面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
<!--    卡片视图区域-->
    <el-card>
      <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import * as echarts from 'echarts'
import _ from 'lodash'
export default {
  name: "Report",
  data() {
    return {
      // 需要合并的数据
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created() {

  },
  //此时页面上的元素已经被渲染完毕了
  async mounted() {
    // 3 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'));

    const {data: res} = await this.$http.get("/reports/type/1")
    if (res.meta.status !== 200){
      return this.$message.error("获取折线图数据失败！")
    }

    // 4 准备数据和配置项
    // 指定图表的配置项和数据
    // var option = {
    //   title: {
    //     text: 'ECharts 入门示例'
    //   },
    //   tooltip: {},
    //   legend: {
    //     data:['销量']
    //   },
    //   xAxis: {
    //     data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
    //   },
    //   yAxis: {},
    //   series: [{
    //     name: '销量',
    //     type: 'bar',
    //     data: [5, 20, 36, 10, 10, 20]
    //   }]
    // };
    // 展示数据
    const result = _.merge(res.data,this.options)
    myChart.setOption(result)
  },
  methods: {

  }
}
</script>

<style scoped>

</style>
